When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

Some of these approaches may show promise, but new research indicates much of today’s AI is even more easily duped by false ...

A 1,300-pound NASA satellite that has spent more than a decade studying Earth’s radiation environment is expected to fall back to the planet today, marking the end of a mission that lasted far longer ...